Frank N. Blanchard
4610 NW 17th Pl.
Gainesville, FL-32605-0000
U.S.A.
E-mail: fnblan@atlantic.net

Roderick Hill
CSIRO Division of Minerals
Box 312
Clayton South
Victoria, 3169
Australia
E-mail: rod.hill@minerals.csiro.au

Wieslaw Lasocha
Jagiellonian University
Dept. of Crystallography
Faculty of Chemistry
31-007 Krakow, ul. Golebia 24
Ul. Ingardena 3,
Krakow, Malopolska, 30-060
Poland
E-mail: lasocha@chemia.uj.edu.pl

Steve Maginn
54 Cramswell Close
Haverhill, CB9 9QL
United Kingdom
E-mail: smaginn@chemcomp.com